neoneo-go/pkg/smartcontract/param_context.go
Roman Khimov 238c590ddb core: fix contract state's Properties to use PropertyState
PublishTX only had one of these flags, but newer contracts (created via the
interop function) can have more and these flags are aggregated into one field
that uses PropertyState enumeration (it's used to publish contract, so
supposedly it's also a nice choice for contract state storage).
2019-10-15 12:56:25 +03:00

93 lines
1.9 KiB
Go

package smartcontract
import "github.com/CityOfZion/neo-go/pkg/util"
// ParamType represent the Type of the contract parameter
type ParamType byte
// A list of supported smart contract parameter types.
const (
SignatureType ParamType = iota
BoolType
IntegerType
Hash160Type
Hash256Type
ByteArrayType
PublicKeyType
StringType
ArrayType
)
// PropertyState represents contract properties (flags).
type PropertyState byte
// List of supported properties.
const (
NoProperties = 0
HasStorage PropertyState = 1 << iota
HasDynamicInvoke
IsPayable
)
// Parameter represents a smart contract parameter.
type Parameter struct {
// Type of the parameter
Type ParamType `json:"type"`
// The actual value of the parameter.
Value interface{} `json:"value"`
}
func (pt ParamType) String() string {
switch pt {
case SignatureType:
return "Signature"
case BoolType:
return "Boolean"
case IntegerType:
return "Integer"
case Hash160Type:
return "Hash160"
case Hash256Type:
return "Hash256"
case ByteArrayType:
return "ByteArray"
case PublicKeyType:
return "PublicKey"
case StringType:
return "String"
case ArrayType:
return "Array"
default:
return ""
}
}
// MarshalJSON implements the json.Marshaler interface.
func (pt ParamType) MarshalJSON() ([]byte, error) {
return []byte(`"` + pt.String() + `"`), nil
}
// NewParameter returns a Parameter with proper initialized Value
// of the given ParamType.
func NewParameter(t ParamType) Parameter {
return Parameter{
Type: t,
Value: nil,
}
}
// ContextItem represents a transaction context item.
type ContextItem struct {
Script util.Uint160
Parameters []Parameter
Signatures []Signature
}
// Signature represents a transaction signature.
type Signature struct {
Data []byte
PublicKey []byte
}
// ParameterContext holds the parameter context.
type ParameterContext struct{}